/*istanbul ignore start*/
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = Diff;

/*istanbul ignore end*/
function Diff() {}

Diff.prototype = {
  /*istanbul ignore start*/

  /*istanbul ignore end*/
  diff: function diff(oldString, newString) {
    /*istanbul ignore start*/
    var
    /*istanbul ignore end*/
    options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var callback = options.callback;

    if (typeof options === 'function') {
      callback = options;
      options = {};
    }

    this.options = options;
    var self = this;

    function done(value) {
      if (callback) {
        setTimeout(function () {
          callback(undefined, value);
        }, 0);
        return true;
      } else {
        return value;
      }
    } // Allow subclasses to massage the input prior to running


    oldString = this.castInput(oldString);
    newString = this.castInput(newString);
    oldString = this.removeEmpty(this.tokenize(oldString));
    newString = this.removeEmpty(this.tokenize(newString));
    var newLen = newString.length,
        oldLen = oldString.length;
    var editLength = 1;
    var maxEditLength = newLen + oldLen;

    if (options.maxEditLength) {
      maxEditLength = Math.min(maxEditLength, options.maxEditLength);
    }

    var bestPath = [{
      newPos: -1,
      components: []
    }]; // Seed editLength = 0, i.e. the content starts with the same values

    var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);

    if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
      // Identity per the equality and tokenizer
      return done([{
        value: this.join(newString),
        count: newString.length
      }]);
    } // Main worker method. checks all permutations of a given edit length for acceptance.


    function execEditLength() {
      for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
        var basePath =
        /*istanbul ignore start*/
        void 0
        /*istanbul ignore end*/
        ;

        var addPath = bestPath[diagonalPath - 1],
            removePath = bestPath[diagonalPath + 1],
            _oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;

        if (addPath) {
          // No one else is going to attempt to use this value, clear it
          bestPath[diagonalPath - 1] = undefined;
        }

        var canAdd = addPath && addPath.newPos + 1 < newLen,
            canRemove = removePath && 0 <= _oldPos && _oldPos < oldLen;

        if (!canAdd && !canRemove) {
          // If this path is a terminal then prune
          bestPath[diagonalPath] = undefined;
          continue;
        } // Select the diagonal that we want to branch from. We select the prior
        // path whose position in the new string is the farthest from the origin
        // and does not pass the bounds of the diff graph


        if (!canAdd || canRemove && addPath.newPos < removePath.newPos) {
          basePath = clonePath(removePath);
          self.pushComponent(basePath.components, undefined, true);
        } else {
          basePath = addPath; // No need to clone, we've pulled it from the list

          basePath.newPos++;
          self.pushComponent(basePath.components, true, undefined);
        }

        _oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath); // If we have hit the end of both strings, then we are done

        if (basePath.newPos + 1 >= newLen && _oldPos + 1 >= oldLen) {
          return done(buildValues(self, basePath.components, newString, oldString, self.useLongestToken));
        } else {
          // Otherwise track this path as a potential candidate and continue.
          bestPath[diagonalPath] = basePath;
        }
      }

      editLength++;
    } // Performs the length of edit iteration. Is a bit fugly as this has to support the
    // sync and async mode which is never fun. Loops over execEditLength until a value
    // is produced, or until the edit length exceeds options.maxEditLength (if given),
    // in which case it will return undefined.


    if (callback) {
      (function exec() {
        setTimeout(function () {
          if (editLength > maxEditLength) {
            return callback();
          }

          if (!execEditLength()) {
            exec();
          }
        }, 0);
      })();
    } else {
      while (editLength <= maxEditLength) {
        var ret = execEditLength();

        if (ret) {
          return ret;
        }
      }
    }
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  pushComponent: function pushComponent(components, added, removed) {
    var last = components[components.length - 1];

    if (last && last.added === added && last.removed === removed) {
      // We need to clone here as the component clone operation is just
      // as shallow array clone
      components[components.length - 1] = {
        count: last.count + 1,
        added: added,
        removed: removed
      };
    } else {
      components.push({
        count: 1,
        added: added,
        removed: removed
      });
    }
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  extractCommon: function extractCommon(basePath, newString, oldString, diagonalPath) {
    var newLen = newString.length,
        oldLen = oldString.length,
        newPos = basePath.newPos,
        oldPos = newPos - diagonalPath,
        commonCount = 0;

    while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
      newPos++;
      oldPos++;
      commonCount++;
    }

    if (commonCount) {
      basePath.components.push({
        count: commonCount
      });
    }

    basePath.newPos = newPos;
    return oldPos;
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  equals: function equals(left, right) {
    if (this.options.comparator) {
      return this.options.comparator(left, right);
    } else {
      return left === right || this.options.ignoreCase && left.toLowerCase() === right.toLowerCase();
    }
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  removeEmpty: function removeEmpty(array) {
    var ret = [];

    for (var i = 0; i < array.length; i++) {
      if (array[i]) {
        ret.push(array[i]);
      }
    }

    return ret;
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  castInput: function castInput(value) {
    return value;
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  tokenize: function tokenize(value) {
    return value.split('');
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  join: function join(chars) {
    return chars.join('');
  }
};

function buildValues(diff, components, newString, oldString, useLongestToken) {
  var componentPos = 0,
      componentLen = components.length,
      newPos = 0,
      oldPos = 0;

  for (; componentPos < componentLen; componentPos++) {
    var component = components[componentPos];

    if (!component.removed) {
      if (!component.added && useLongestToken) {
        var value = newString.slice(newPos, newPos + component.count);
        value = value.map(function (value, i) {
          var oldValue = oldString[oldPos + i];
          return oldValue.length > value.length ? oldValue : value;
        });
        component.value = diff.join(value);
      } else {
        component.value = diff.join(newString.slice(newPos, newPos + component.count));
      }

      newPos += component.count; // Common case

      if (!component.added) {
        oldPos += component.count;
      }
    } else {
      component.value = diff.join(oldString.slice(oldPos, oldPos + component.count));
      oldPos += component.count; // Reverse add and remove so removes are output first to match common convention
      // The diffing algorithm is tied to add then remove output and this is the simplest
      // route to get the desired output with minimal overhead.

      if (componentPos && components[componentPos - 1].added) {
        var tmp = components[componentPos - 1];
        components[componentPos - 1] = components[componentPos];
        components[componentPos] = tmp;
      }
    }
  } // Special case handle for when one terminal is ignored (i.e. whitespace).
  // For this case we merge the terminal into the prior string and drop the change.
  // This is only available for string mode.


  var lastComponent = components[componentLen - 1];

  if (componentLen > 1 && typeof lastComponent.value === 'string' && (lastComponent.added || lastComponent.removed) && diff.equals('', lastComponent.value)) {
    components[componentLen - 2].value += lastComponent.value;
    components.pop();
  }

  return components;
}

function clonePath(path) {
  return {
    newPos: path.newPos,
    components: path.components.slice(0)
  };
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"sources":["../../src/diff/base.js"],"names":["Diff","prototype","diff","oldString","newString","options","callback","self","done","value","setTimeout","undefined","castInput","removeEmpty","tokenize","newLen","length","oldLen","editLength","maxEditLength","Math","min","bestPath","newPos","components","oldPos","extractCommon","join","count","execEditLength","diagonalPath","basePath","addPath","removePath","canAdd","canRemove","clonePath","pushComponent","buildValues","useLongestToken","exec","ret","added","removed","last","push","commonCount","equals","left","right","comparator","ignoreCase","toLowerCase","array","i","split","chars","componentPos","componentLen","component","slice","map","oldValue","tmp","lastComponent","pop","path"],"mappings":";;;;;;;;;AAAe,SAASA,IAAT,GAAgB,CAAE;;AAEjCA,IAAI,CAACC,SAAL,GAAiB;AAAA;;AAAA;AACfC,EAAAA,IADe,gBACVC,SADU,EACCC,SADD,EAC0B;AAAA;AAAA;AAAA;AAAdC,IAAAA,OAAc,uEAAJ,EAAI;AACvC,QAAIC,QAAQ,GAAGD,OAAO,CAACC,QAAvB;;AACA,QAAI,OAAOD,OAAP,KAAmB,UAAvB,EAAmC;AACjCC,MAAAA,QAAQ,GAAGD,OAAX;AACAA,MAAAA,OAAO,GAAG,EAAV;AACD;;AACD,SAAKA,OAAL,GAAeA,OAAf;AAEA,QAAIE,IAAI,GAAG,IAAX;;AAEA,aAASC,IAAT,CAAcC,KAAd,EAAqB;AACnB,UAAIH,QAAJ,EAAc;AACZI,QAAAA,UAAU,CAAC,YAAW;AAAEJ,UAAAA,QAAQ,CAACK,SAAD,EAAYF,KAAZ,CAAR;AAA6B,SAA3C,EAA6C,CAA7C,CAAV;AACA,eAAO,IAAP;AACD,OAHD,MAGO;AACL,eAAOA,KAAP;AACD;AACF,KAjBsC,CAmBvC;;;AACAN,IAAAA,SAAS,GAAG,KAAKS,SAAL,CAAeT,SAAf,CAAZ;AACAC,IAAAA,SAAS,GAAG,KAAKQ,SAAL,CAAeR,SAAf,CAAZ;AAEAD,IAAAA,SAAS,GAAG,KAAKU,WAAL,CAAiB,KAAKC,QAAL,CAAcX,SAAd,CAAjB,CAAZ;AACAC,IAAAA,SAAS,GAAG,KAAKS,WAAL,CAAiB,KAAKC,QAAL,CAAcV,SAAd,CAAjB,CAAZ;AAEA,QAAIW,MAAM,GAAGX,SAAS,CAACY,MAAvB;AAAA,QAA+BC,MAAM,GAAGd,SAAS,CAACa,MAAlD;AACA,QAAIE,UAAU,GAAG,CAAjB;AACA,QAAIC,aAAa,GAAGJ,MAAM,GAAGE,MAA7B;;AACA,QAAGZ,OAAO,CAACc,aAAX,EAA0B;AACxBA,MAAAA,aAAa,GAAGC,IAAI,CAACC,GAAL,CAASF,aAAT,EAAwBd,OAAO,CAACc,aAAhC,CAAhB;AACD;;AAED,QAAIG,QAAQ,GAAG,CAAC;AAAEC,MAAAA,MAAM,EAAE,CAAC,CAAX;AAAcC,MAAAA,UAAU,EAAE;AAA1B,KAAD,CAAf,CAjCuC,CAmCvC;;AACA,QAAIC,MAAM,GAAG,KAAKC,aAAL,CAAmBJ,QAAQ,CAAC,CAAD,CAA3B,EAAgClB,SAAhC,EAA2CD,SAA3C,EAAsD,CAAtD,CAAb;;AACA,QAAImB,QAAQ,CAAC,CAAD,CAAR,CAAYC,MAAZ,GAAqB,CAArB,IAA0BR,MAA1B,IAAoCU,MAAM,GAAG,CAAT,IAAcR,MAAtD,EAA8D;AAC5D;AACA,aAAOT,IAAI,CAAC,CAAC;AAACC,QAAAA,KAAK,EAAE,KAAKkB,IAAL,CAAUvB,SAAV,CAAR;AAA8BwB,QAAAA,KAAK,EAAExB,SAAS,CAACY;AAA/C,OAAD,CAAD,CAAX;AACD,KAxCsC,CA0CvC;;;AACA,aAASa,cAAT,GAA0B;AACxB,WAAK,IAAIC,YAAY,GAAG,CAAC,CAAD,GAAKZ,UAA7B,EAAyCY,YAAY,IAAIZ,UAAzD,EAAqEY,YAAY,IAAI,CAArF,EAAwF;AACtF,YAAIC,QAAQ;AAAA;AAAA;AAAZ;AAAA;;AACA,YAAIC,OAAO,GAAGV,QAAQ,CAACQ,YAAY,GAAG,CAAhB,CAAtB;AAAA,YACIG,UAAU,GAAGX,QAAQ,CAACQ,YAAY,GAAG,CAAhB,CADzB;AAAA,YAEIL,OAAM,GAAG,CAACQ,UAAU,GAAGA,UAAU,CAACV,MAAd,GAAuB,CAAlC,IAAuCO,YAFpD;;AAGA,YAAIE,OAAJ,EAAa;AACX;AACAV,UAAAA,QAAQ,CAACQ,YAAY,GAAG,CAAhB,CAAR,GAA6BnB,SAA7B;AACD;;AAED,YAAIuB,MAAM,GAAGF,OAAO,IAAIA,OAAO,CAACT,MAAR,GAAiB,CAAjB,GAAqBR,MAA7C;AAAA,YACIoB,SAAS,GAAGF,UAAU,IAAI,KAAKR,OAAnB,IAA6BA,OAAM,GAAGR,MADtD;;AAEA,YAAI,CAACiB,MAAD,IAAW,CAACC,SAAhB,EAA2B;AACzB;AACAb,UAAAA,QAAQ,CAACQ,YAAD,CAAR,GAAyBnB,SAAzB;AACA;AACD,SAhBqF,CAkBtF;AACA;AACA;;;AACA,YAAI,CAACuB,MAAD,IAAYC,SAAS,IAAIH,OAAO,CAACT,MAAR,GAAiBU,UAAU,CAACV,MAAzD,EAAkE;AAChEQ,UAAAA,QAAQ,GAAGK,SAAS,CAACH,UAAD,CAApB;AACA1B,UAAAA,IAAI,CAAC8B,aAAL,CAAmBN,QAAQ,CAACP,UAA5B,EAAwCb,SAAxC,EAAmD,IAAnD;AACD,SAHD,MAGO;AACLoB,UAAAA,QAAQ,GAAGC,OAAX,CADK,CACe;;AACpBD,UAAAA,QAAQ,CAACR,MAAT;AACAhB,UAAAA,IAAI,CAAC8B,aAAL,CAAmBN,QAAQ,CAACP,UAA5B,EAAwC,IAAxC,EAA8Cb,SAA9C;AACD;;AAEDc,QAAAA,OAAM,GAAGlB,IAAI,CAACmB,aAAL,CAAmBK,QAAnB,EAA6B3B,SAA7B,EAAwCD,SAAxC,EAAmD2B,YAAnD,CAAT,CA9BsF,CAgCtF;;AACA,YAAIC,QAAQ,CAACR,MAAT,GAAkB,CAAlB,IAAuBR,MAAvB,IAAiCU,OAAM,GAAG,CAAT,IAAcR,MAAnD,EAA2D;AACzD,iBAAOT,IAAI,CAAC8B,WAAW,CAAC/B,IAAD,EAAOwB,QAAQ,CAACP,UAAhB,EAA4BpB,SAA5B,EAAuCD,SAAvC,EAAkDI,IAAI,CAACgC,eAAvD,CAAZ,CAAX;AACD,SAFD,MAEO;AACL;AACAjB,UAAAA,QAAQ,CAACQ,YAAD,CAAR,GAAyBC,QAAzB;AACD;AACF;;AAEDb,MAAAA,UAAU;AACX,KAtFsC,CAwFvC;AACA;AACA;AACA;;;AACA,QAAIZ,QAAJ,EAAc;AACX,gBAASkC,IAAT,GAAgB;AACf9B,QAAAA,UAAU,CAAC,YAAW;AACpB,cAAIQ,UAAU,GAAGC,aAAjB,EAAgC;AAC9B,mBAAOb,QAAQ,EAAf;AACD;;AAED,cAAI,CAACuB,cAAc,EAAnB,EAAuB;AACrBW,YAAAA,IAAI;AACL;AACF,SARS,EAQP,CARO,CAAV;AASD,OAVA,GAAD;AAWD,KAZD,MAYO;AACL,aAAOtB,UAAU,IAAIC,aAArB,EAAoC;AAClC,YAAIsB,GAAG,GAAGZ,cAAc,EAAxB;;AACA,YAAIY,GAAJ,EAAS;AACP,iBAAOA,GAAP;AACD;AACF;AACF;AACF,GAjHc;;AAAA;;AAAA;AAmHfJ,EAAAA,aAnHe,yBAmHDb,UAnHC,EAmHWkB,KAnHX,EAmHkBC,OAnHlB,EAmH2B;AACxC,QAAIC,IAAI,GAAGpB,UAAU,CAACA,UAAU,CAACR,MAAX,GAAoB,CAArB,CAArB;;AACA,QAAI4B,IAAI,IAAIA,IAAI,CAACF,KAAL,KAAeA,KAAvB,IAAgCE,IAAI,CAACD,OAAL,KAAiBA,OAArD,EAA8D;AAC5D;AACA;AACAnB,MAAAA,UAAU,CAACA,UAAU,CAACR,MAAX,GAAoB,CAArB,CAAV,GAAoC;AAACY,QAAAA,KAAK,EAAEgB,IAAI,CAAChB,KAAL,GAAa,CAArB;AAAwBc,QAAAA,KAAK,EAAEA,KAA/B;AAAsCC,QAAAA,OAAO,EAAEA;AAA/C,OAApC;AACD,KAJD,MAIO;AACLnB,MAAAA,UAAU,CAACqB,IAAX,CAAgB;AAACjB,QAAAA,KAAK,EAAE,CAAR;AAAWc,QAAAA,KAAK,EAAEA,KAAlB;AAAyBC,QAAAA,OAAO,EAAEA;AAAlC,OAAhB;AACD;AACF,GA5Hc;;AAAA;;AAAA;AA6HfjB,EAAAA,aA7He,yBA6HDK,QA7HC,EA6HS3B,SA7HT,EA6HoBD,SA7HpB,EA6H+B2B,YA7H/B,EA6H6C;AAC1D,QAAIf,MAAM,GAAGX,SAAS,CAACY,MAAvB;AAAA,QACIC,MAAM,GAAGd,SAAS,CAACa,MADvB;AAAA,QAEIO,MAAM,GAAGQ,QAAQ,CAACR,MAFtB;AAAA,QAGIE,MAAM,GAAGF,MAAM,GAAGO,YAHtB;AAAA,QAKIgB,WAAW,GAAG,CALlB;;AAMA,WAAOvB,MAAM,GAAG,CAAT,GAAaR,MAAb,IAAuBU,MAAM,GAAG,CAAT,GAAaR,MAApC,IAA8C,KAAK8B,MAAL,CAAY3C,SAAS,CAACmB,MAAM,GAAG,CAAV,CAArB,EAAmCpB,SAAS,CAACsB,MAAM,GAAG,CAAV,CAA5C,CAArD,EAAgH;AAC9GF,MAAAA,MAAM;AACNE,MAAAA,MAAM;AACNqB,MAAAA,WAAW;AACZ;;AAED,QAAIA,WAAJ,EAAiB;AACff,MAAAA,QAAQ,CAACP,UAAT,CAAoBqB,IAApB,CAAyB;AAACjB,QAAAA,KAAK,EAAEkB;AAAR,OAAzB;AACD;;AAEDf,IAAAA,QAAQ,CAACR,MAAT,GAAkBA,MAAlB;AACA,WAAOE,MAAP;AACD,GAhJc;;AAAA;;AAAA;AAkJfsB,EAAAA,MAlJe,kBAkJRC,IAlJQ,EAkJFC,KAlJE,EAkJK;AAClB,QAAI,KAAK5C,OAAL,CAAa6C,UAAjB,EAA6B;AAC3B,aAAO,KAAK7C,OAAL,CAAa6C,UAAb,CAAwBF,IAAxB,EAA8BC,KAA9B,CAAP;AACD,KAFD,MAEO;AACL,aAAOD,IAAI,KAAKC,KAAT,IACD,KAAK5C,OAAL,CAAa8C,UAAb,IAA2BH,IAAI,CAACI,WAAL,OAAuBH,KAAK,CAACG,WAAN,EADxD;AAED;AACF,GAzJc;;AAAA;;AAAA;AA0JfvC,EAAAA,WA1Je,uBA0JHwC,KA1JG,EA0JI;AACjB,QAAIZ,GAAG,GAAG,EAAV;;AACA,SAAK,IAAIa,CAAC,GAAG,CAAb,EAAgBA,CAAC,GAAGD,KAAK,CAACrC,MAA1B,EAAkCsC,CAAC,EAAnC,EAAuC;AACrC,UAAID,KAAK,CAACC,CAAD,CAAT,EAAc;AACZb,QAAAA,GAAG,CAACI,IAAJ,CAASQ,KAAK,CAACC,CAAD,CAAd;AACD;AACF;;AACD,WAAOb,GAAP;AACD,GAlKc;;AAAA;;AAAA;AAmKf7B,EAAAA,SAnKe,qBAmKLH,KAnKK,EAmKE;AACf,WAAOA,KAAP;AACD,GArKc;;AAAA;;AAAA;AAsKfK,EAAAA,QAtKe,oBAsKNL,KAtKM,EAsKC;AACd,WAAOA,KAAK,CAAC8C,KAAN,CAAY,EAAZ,CAAP;AACD,GAxKc;;AAAA;;AAAA;AAyKf5B,EAAAA,IAzKe,gBAyKV6B,KAzKU,EAyKH;AACV,WAAOA,KAAK,CAAC7B,IAAN,CAAW,EAAX,CAAP;AACD;AA3Kc,CAAjB;;AA8KA,SAASW,WAAT,CAAqBpC,IAArB,EAA2BsB,UAA3B,EAAuCpB,SAAvC,EAAkDD,SAAlD,EAA6DoC,eAA7D,EAA8E;AAC5E,MAAIkB,YAAY,GAAG,CAAnB;AAAA,MACIC,YAAY,GAAGlC,UAAU,CAACR,MAD9B;AAAA,MAEIO,MAAM,GAAG,CAFb;AAAA,MAGIE,MAAM,GAAG,CAHb;;AAKA,SAAOgC,YAAY,GAAGC,YAAtB,EAAoCD,YAAY,EAAhD,EAAoD;AAClD,QAAIE,SAAS,GAAGnC,UAAU,CAACiC,YAAD,CAA1B;;AACA,QAAI,CAACE,SAAS,CAAChB,OAAf,EAAwB;AACtB,UAAI,CAACgB,SAAS,CAACjB,KAAX,IAAoBH,eAAxB,EAAyC;AACvC,YAAI9B,KAAK,GAAGL,SAAS,CAACwD,KAAV,CAAgBrC,MAAhB,EAAwBA,MAAM,GAAGoC,SAAS,CAAC/B,KAA3C,CAAZ;AACAnB,QAAAA,KAAK,GAAGA,KAAK,CAACoD,GAAN,CAAU,UAASpD,KAAT,EAAgB6C,CAAhB,EAAmB;AACnC,cAAIQ,QAAQ,GAAG3D,SAAS,CAACsB,MAAM,GAAG6B,CAAV,CAAxB;AACA,iBAAOQ,QAAQ,CAAC9C,MAAT,GAAkBP,KAAK,CAACO,MAAxB,GAAiC8C,QAAjC,GAA4CrD,KAAnD;AACD,SAHO,CAAR;AAKAkD,QAAAA,SAAS,CAAClD,KAAV,GAAkBP,IAAI,CAACyB,IAAL,CAAUlB,KAAV,CAAlB;AACD,OARD,MAQO;AACLkD,QAAAA,SAAS,CAAClD,KAAV,GAAkBP,IAAI,CAACyB,IAAL,CAAUvB,SAAS,CAACwD,KAAV,CAAgBrC,MAAhB,EAAwBA,MAAM,GAAGoC,SAAS,CAAC/B,KAA3C,CAAV,CAAlB;AACD;;AACDL,MAAAA,MAAM,IAAIoC,SAAS,CAAC/B,KAApB,CAZsB,CActB;;AACA,UAAI,CAAC+B,SAAS,CAACjB,KAAf,EAAsB;AACpBjB,QAAAA,MAAM,IAAIkC,SAAS,CAAC/B,KAApB;AACD;AACF,KAlBD,MAkBO;AACL+B,MAAAA,SAAS,CAAClD,KAAV,GAAkBP,IAAI,CAACyB,IAAL,CAAUxB,SAAS,CAACyD,KAAV,CAAgBnC,MAAhB,EAAwBA,MAAM,GAAGkC,SAAS,CAAC/B,KAA3C,CAAV,CAAlB;AACAH,MAAAA,MAAM,IAAIkC,SAAS,CAAC/B,KAApB,CAFK,CAIL;AACA;AACA;;AACA,UAAI6B,YAAY,IAAIjC,UAAU,CAACiC,YAAY,GAAG,CAAhB,CAAV,CAA6Bf,KAAjD,EAAwD;AACtD,YAAIqB,GAAG,GAAGvC,UAAU,CAACiC,YAAY,GAAG,CAAhB,CAApB;AACAjC,QAAAA,UAAU,CAACiC,YAAY,GAAG,CAAhB,CAAV,GAA+BjC,UAAU,CAACiC,YAAD,CAAzC;AACAjC,QAAAA,UAAU,CAACiC,YAAD,CAAV,GAA2BM,GAA3B;AACD;AACF;AACF,GAvC2E,CAyC5E;AACA;AACA;;;AACA,MAAIC,aAAa,GAAGxC,UAAU,CAACkC,YAAY,GAAG,CAAhB,CAA9B;;AACA,MAAIA,YAAY,GAAG,CAAf,IACG,OAAOM,aAAa,CAACvD,KAArB,KAA+B,QADlC,KAEIuD,aAAa,CAACtB,KAAd,IAAuBsB,aAAa,CAACrB,OAFzC,KAGGzC,IAAI,CAAC6C,MAAL,CAAY,EAAZ,EAAgBiB,aAAa,CAACvD,KAA9B,CAHP,EAG6C;AAC3Ce,IAAAA,UAAU,CAACkC,YAAY,GAAG,CAAhB,CAAV,CAA6BjD,KAA7B,IAAsCuD,aAAa,CAACvD,KAApD;AACAe,IAAAA,UAAU,CAACyC,GAAX;AACD;;AAED,SAAOzC,UAAP;AACD;;AAED,SAASY,SAAT,CAAmB8B,IAAnB,EAAyB;AACvB,SAAO;AAAE3C,IAAAA,MAAM,EAAE2C,IAAI,CAAC3C,MAAf;AAAuBC,IAAAA,UAAU,EAAE0C,IAAI,CAAC1C,UAAL,CAAgBoC,KAAhB,CAAsB,CAAtB;AAAnC,GAAP;AACD","sourcesContent":["export default function Diff() {}\n\nDiff.prototype = {\n  diff(oldString, newString, options = {}) {\n    let callback = options.callback;\n    if (typeof options === 'function') {\n      callback = options;\n      options = {};\n    }\n    this.options = options;\n\n    let self = this;\n\n    function done(value) {\n      if (callback) {\n        setTimeout(function() { callback(undefined, value); }, 0);\n        return true;\n      } else {\n        return value;\n      }\n    }\n\n    // Allow subclasses to massage the input prior to running\n    oldString = this.castInput(oldString);\n    newString = this.castInput(newString);\n\n    oldString = this.removeEmpty(this.tokenize(oldString));\n    newString = this.removeEmpty(this.tokenize(newString));\n\n    let newLen = newString.length, oldLen = oldString.length;\n    let editLength = 1;\n    let maxEditLength = newLen + oldLen;\n    if(options.maxEditLength) {\n      maxEditLength = Math.min(maxEditLength, options.maxEditLength);\n    }\n\n    let bestPath = [{ newPos: -1, components: [] }];\n\n    // Seed editLength = 0, i.e. the content starts with the same values\n    let oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);\n    if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {\n      // Identity per the equality and tokenizer\n      return done([{value: this.join(newString), count: newString.length}]);\n    }\n\n    // Main worker method. checks all permutations of a given edit length for acceptance.\n    function execEditLength() {\n      for (let diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {\n        let basePath;\n        let addPath = bestPath[diagonalPath - 1],\n            removePath = bestPath[diagonalPath + 1],\n            oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;\n        if (addPath) {\n          // No one else is going to attempt to use this value, clear it\n          bestPath[diagonalPath - 1] = undefined;\n        }\n\n        let canAdd = addPath && addPath.newPos + 1 < newLen,\n            canRemove = removePath && 0 <= oldPos && oldPos < oldLen;\n        if (!canAdd && !canRemove) {\n          // If this path is a terminal then prune\n          bestPath[diagonalPath] = undefined;\n          continue;\n        }\n\n        // Select the diagonal that we want to branch from. We select the prior\n        // path whose position in the new string is the farthest from the origin\n        // and does not pass the bounds of the diff graph\n        if (!canAdd || (canRemove && addPath.newPos < removePath.newPos)) {\n          basePath = clonePath(removePath);\n          self.pushComponent(basePath.components, undefined, true);\n        } else {\n          basePath = addPath; // No need to clone, we've pulled it from the list\n          basePath.newPos++;\n          self.pushComponent(basePath.components, true, undefined);\n        }\n\n        oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath);\n\n        // If we have hit the end of both strings, then we are done\n        if (basePath.newPos + 1 >= newLen && oldPos + 1 >= oldLen) {\n          return done(buildValues(self, basePath.components, newString, oldString, self.useLongestToken));\n        } else {\n          // Otherwise track this path as a potential candidate and continue.\n          bestPath[diagonalPath] = basePath;\n        }\n      }\n\n      editLength++;\n    }\n\n    // Performs the length of edit iteration. Is a bit fugly as this has to support the\n    // sync and async mode which is never fun. Loops over execEditLength until a value\n    // is produced, or until the edit length exceeds options.maxEditLength (if given),\n    // in which case it will return undefined.\n    if (callback) {\n      (function exec() {\n        setTimeout(function() {\n          if (editLength > maxEditLength) {\n            return callback();\n          }\n\n          if (!execEditLength()) {\n            exec();\n          }\n        }, 0);\n      }());\n    } else {\n      while (editLength <= maxEditLength) {\n        let ret = execEditLength();\n        if (ret) {\n          return ret;\n        }\n      }\n    }\n  },\n\n  pushComponent(components, added, removed) {\n    let last = components[components.length - 1];\n    if (last && last.added === added && last.removed === removed) {\n      // We need to clone here as the component clone operation is just\n      // as shallow array clone\n      components[components.length - 1] = {count: last.count + 1, added: added, removed: removed };\n    } else {\n      components.push({count: 1, added: added, removed: removed });\n    }\n  },\n  extractCommon(basePath, newString, oldString, diagonalPath) {\n    let newLen = newString.length,\n        oldLen = oldString.length,\n        newPos = basePath.newPos,\n        oldPos = newPos - diagonalPath,\n\n        commonCount = 0;\n    while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {\n      newPos++;\n      oldPos++;\n      commonCount++;\n    }\n\n    if (commonCount) {\n      basePath.components.push({count: commonCount});\n    }\n\n    basePath.newPos = newPos;\n    return oldPos;\n  },\n\n  equals(left, right) {\n    if (this.options.comparator) {\n      return this.options.comparator(left, right);\n    } else {\n      return left === right\n        || (this.options.ignoreCase && left.toLowerCase() === right.toLowerCase());\n    }\n  },\n  removeEmpty(array) {\n    let ret = [];\n    for (let i = 0; i < array.length; i++) {\n      if (array[i]) {\n        ret.push(array[i]);\n      }\n    }\n    return ret;\n  },\n  castInput(value) {\n    return value;\n  },\n  tokenize(value) {\n    return value.split('');\n  },\n  join(chars) {\n    return chars.join('');\n  }\n};\n\nfunction buildValues(diff, components, newString, oldString, useLongestToken) {\n  let componentPos = 0,\n      componentLen = components.length,\n      newPos = 0,\n      oldPos = 0;\n\n  for (; componentPos < componentLen; componentPos++) {\n    let component = components[componentPos];\n    if (!component.removed) {\n      if (!component.added && useLongestToken) {\n        let value = newString.slice(newPos, newPos + component.count);\n        value = value.map(function(value, i) {\n          let oldValue = oldString[oldPos + i];\n          return oldValue.length > value.length ? oldValue : value;\n        });\n\n        component.value = diff.join(value);\n      } else {\n        component.value = diff.join(newString.slice(newPos, newPos + component.count));\n      }\n      newPos += component.count;\n\n      // Common case\n      if (!component.added) {\n        oldPos += component.count;\n      }\n    } else {\n      component.value = diff.join(oldString.slice(oldPos, oldPos + component.count));\n      oldPos += component.count;\n\n      // Reverse add and remove so removes are output first to match common convention\n      // The diffing algorithm is tied to add then remove output and this is the simplest\n      // route to get the desired output with minimal overhead.\n      if (componentPos && components[componentPos - 1].added) {\n        let tmp = components[componentPos - 1];\n        components[componentPos - 1] = components[componentPos];\n        components[componentPos] = tmp;\n      }\n    }\n  }\n\n  // Special case handle for when one terminal is ignored (i.e. whitespace).\n  // For this case we merge the terminal into the prior string and drop the change.\n  // This is only available for string mode.\n  let lastComponent = components[componentLen - 1];\n  if (componentLen > 1\n      && typeof lastComponent.value === 'string'\n      && (lastComponent.added || lastComponent.removed)\n      && diff.equals('', lastComponent.value)) {\n    components[componentLen - 2].value += lastComponent.value;\n    components.pop();\n  }\n\n  return components;\n}\n\nfunction clonePath(path) {\n  return { newPos: path.newPos, components: path.components.slice(0) };\n}\n"]}
